Circuit and method for battery charge control

Details Circuit and method for battery charge control Circuit and method for battery charge control

H - Electricity

02

J

H02J 7/00 (2006.01)

Patent

CA 2169706

A battery charge control circuit (10) senses the charge condition of cells in a battery pack (12, 14, 16, 18) using measurement circuit (51). Upon detection of a single under- voltage cell, the charge control circuit is placed in a sleep mode. Pack sense circuit (240) senses when the battery pack is placed in a charger. If circuit (10) was in a sleep mode, it is awakened. If any cell is measured over-voltage, the status is checked versus the other cells. If all the cells are over-voltage, the battery is considered balanced. If one or more cells are not over-voltage, control circuit (32) activates a discharge transistor (212, 214, 216, 218), discharging the cell within a hysteresis voltage below the over-voltage limit. Charge balancing of cells is continued until the cells are within a programmable hysteresis voltage of each other.

Affiliated with

Also associated with

Rating

Circuit and method for battery charge control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit and method for battery charge control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit and method for battery charge control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1860485